PTA 数据结构2-4

List Insert(List L, ElementType X){List temp;temp = (List)malloc(sizeof(struct Node));temp->Data = X;List r;r = L->Next;List rpre = L;while (r != NULL){if (r->Data <= (temp->Data)){r = r->Next;rpre = rpre->Next;}else{temp->Next = r;rpre->Next = temp;return L;}}if (r == NULL){rpre->Next = temp;rpre->Next->Next = NULL;return L;}}

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